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Dest IP Start
Dest IP End
Dest Port Start
Dest Port End
5
.
2
L
A
N
5
.
2
L
A
N
Local Area Network (LAN) is a group of subnets regulated and ruled by router. The design
of network structure is related to what type of public IP addresses coming from your ISP.
5
.
2
.
1
B
a
s
i
c
s
o
5
.
2
.
1
B
a
s
i
c
s
o
The most generic function of Vigor router is NAT. It creates a private subnet of your own. As
mentioned previously, the router will talk to other public hosts on the Internet by using
public IP address and talking to local hosts by using its private IP address. What NAT does is
to translate the packets from public IP address to private IP address to forward the right
packets to the right host and vice versa. Besides, Vigor router has a built-in DHCP server that
assigns private IP address to each local host. See the following diagram for a briefly
understanding.
will be passed through the WAN interface.
Type the destination IP start for the specified WAN interface.
Type the destination IP end for the specified WAN interface. If
this field is blank, it means that all the destination IPs will be
passed through the WAN interface.
Type the destination port start for the destination IP.
Type the destination port end for the destination IP. If this field
is blank, it means that all the destination ports will be passed
through the WAN interface.
f
L
A
N
f
L
A
N
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VigorIPPBX 2820 Series User's Guide
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